ATE205266T1 - METHOD FOR TREATING A PAPER PULP AND DEVICE THEREFOR - Google Patents
METHOD FOR TREATING A PAPER PULP AND DEVICE THEREFORInfo
- Publication number
- ATE205266T1 ATE205266T1 AT95930746T AT95930746T ATE205266T1 AT E205266 T1 ATE205266 T1 AT E205266T1 AT 95930746 T AT95930746 T AT 95930746T AT 95930746 T AT95930746 T AT 95930746T AT E205266 T1 ATE205266 T1 AT E205266T1
- Authority
- AT
- Austria
- Prior art keywords
- screen basket
- screw
- suspension
- screen
- pulp suspension
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 229920001131 Pulp (paper) Polymers 0.000 title 1
- 239000000725 suspension Substances 0.000 abstract 9
- 230000005540 biological transmission Effects 0.000 abstract 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
- B01D33/763—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/02—Filtering elements having a conical form
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Centrifugal Separators (AREA)
- Paper (AREA)
Abstract
The present invention relates to a method for treating a pulp suspension in which the suspension is rotated in a rotationally symmetrical, rapidly rotating and permeable screen basket so that the suspension is subjected to the influence of a centrifugal force and dewatered at the same time as the suspension is conveyed by a rotating screw along the inner wall of the screen basket. The invention is characterized in that the suspension is caused to rotate by means which are arranged at the entrance to the screen basket, and in that the outer edges of the said screw bear against or are immediately adjacent to the screen basket and rotate at a higher speed than does the screen basket so that the screw scrapes the inner wall of the screen basket. The invention also relates to a device for implementing the method, which device comprises a housing (12), a screen basket (20) which is rotatably arranged in the said housing (12) and which is provided with screen openings, a screw body (72) which is rotatably arranged in the said screen basket (20) and which is arranged with a screw blade (79), an inlet (59) to the said screen basket (20) for the pulp suspension which is to be treated, an outlet (46, 52) from the said screen basket (20) for the pulp suspension which has been treated, and on outlet (62, 64) from the said housing (12) for liquid which has been removed. The device is characterized in that the said screen basket (20) is able to be rotated, via a transmission (26) which is arranged with a gearing, by a drive element (30), in that the screw body is able to be rotated, via a transmission (84) which is arranged with a gearing, by the said drive element (30), in that the screw blade (79) of the said screw body (72) moves along the inner side of the screen basket (20), with the gearing of the transmissions (26,84) being chosen so that the screw body (72) rotates faster than does the screen basket (20), so that the screw blade (79) has a scraping effect on the inner side of the screen basket (20), and in that an element (102) for initiating rotation of the pulp suspension is arranged at the inlet (59) to the screen basket (20), which element (102) is able to cause the pulp suspension to rotate when it enters the said screen basket (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE1995/000862 WO1997004165A1 (en) | 1995-07-17 | 1995-07-17 | Method and device for treating a pulp suspension |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE205266T1 true ATE205266T1 (en) | 2001-09-15 |
Family
ID=20397505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT95930746T ATE205266T1 (en) | 1995-07-17 | 1995-07-17 | METHOD FOR TREATING A PAPER PULP AND DEVICE THEREFOR |
Country Status (8)
Country | Link |
---|---|
US (1) | US6071378A (en) |
EP (1) | EP0839226B1 (en) |
JP (1) | JP3822907B2 (en) |
AT (1) | ATE205266T1 (en) |
AU (1) | AU3401195A (en) |
DE (1) | DE69522587T2 (en) |
FI (1) | FI116395B (en) |
WO (1) | WO1997004165A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11216313A (en) | 1998-02-03 | 1999-08-10 | Ishikawajima Harima Heavy Ind Co Ltd | Dewatering and concentrating apparatus |
SE517532C2 (en) * | 2000-10-25 | 2002-06-18 | Rolf Ekholm | Method and apparatus for washing a fiber suspension |
AT411451B (en) * | 2001-11-08 | 2004-01-26 | Andritz Ag Maschf | SCREW PRESS FOR SEPARATING LIQUIDS FROM SOLIDS-LIQUID MIXTURES |
KR100755440B1 (en) * | 2006-06-21 | 2007-09-05 | 김영기 | Juice squeezing extractor |
JP4964053B2 (en) * | 2007-07-23 | 2012-06-27 | 月島機械株式会社 | Filtration device |
CA2723579C (en) | 2008-05-05 | 2017-10-24 | Fluid-Quip, Inc. | Apparatus and method for filtering a material from a liquid medium |
CN106615685A (en) | 2009-05-26 | 2017-05-10 | 富禄德奎普有限公司 | Method for producing high-protein corn flour from whole vinasse byproducts |
FI121794B (en) * | 2009-10-23 | 2011-04-15 | Andritz Oy | Device for treating fiber suspension |
JP5535985B2 (en) * | 2011-05-27 | 2014-07-02 | 克之 服部 | Waste liquid purification equipment |
CA3014750C (en) * | 2015-02-23 | 2021-08-17 | Fluid Quip, Inc. | Multi-zoned paddle screen apparatus |
US10926267B2 (en) | 2017-11-27 | 2021-02-23 | Fluid Quip Technologies, Llc | Method and system for reducing the unfermentable solids content in a protein portion at the back end of a corn dry milling process |
US10875889B2 (en) | 2018-12-28 | 2020-12-29 | Fluid Quip Technologies, Llc | Method and system for producing a zein protein product from a whole stillage byproduct produced in a corn dry-milling process |
CN111298749B (en) * | 2020-03-19 | 2022-02-22 | 中国热带农业科学院湛江实验站 | Bagasse cellulose and lignin centrifugal separation synchronous processing screening equipment |
CN113622212B (en) * | 2021-08-11 | 2023-06-27 | 泰盛科技(集团)股份有限公司 | Bamboo pulp fiber screening device |
CN113856302A (en) * | 2021-10-09 | 2021-12-31 | 江苏展之锐医疗科技有限公司 | Medical waste liquid collection device |
CN114602233A (en) * | 2022-03-16 | 2022-06-10 | 青岛黄海学院 | Industrial engineering waste water waste liquid treatment device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE421434B (en) * | 1978-06-14 | 1981-12-21 | Berggren Torsten L | SCREW PRESS |
NO159494C (en) * | 1986-10-23 | 1989-01-04 | Kvaerner Eureka As | PROCEDURE BY BLACKING CELLULOSMASS OR FRACTION THEREOF, PLANT FOR USE BY IMPLEMENTING THE PROCEDURE. |
SE464640B (en) * | 1988-06-16 | 1991-05-27 | Kamyr Ab | DEVICE FOR SILENCE OF A SUSPENSION OF A FIBER CELLULOSAMASSA |
US4915830A (en) * | 1988-08-19 | 1990-04-10 | Sprout-Bauer, Inc. | Pulp wash press |
SE463425B (en) * | 1989-04-17 | 1990-11-19 | Sunds Defibrator Ind Ab | dewatering |
-
1995
- 1995-07-17 DE DE69522587T patent/DE69522587T2/en not_active Expired - Fee Related
- 1995-07-17 AT AT95930746T patent/ATE205266T1/en not_active IP Right Cessation
- 1995-07-17 JP JP50659197A patent/JP3822907B2/en not_active Expired - Fee Related
- 1995-07-17 WO PCT/SE1995/000862 patent/WO1997004165A1/en active IP Right Grant
- 1995-07-17 EP EP95930746A patent/EP0839226B1/en not_active Expired - Lifetime
- 1995-07-17 AU AU34011/95A patent/AU3401195A/en not_active Abandoned
-
1998
- 1998-01-16 FI FI980082A patent/FI116395B/en active IP Right Grant
- 1998-01-16 US US09/008,229 patent/US6071378A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI116395B (en) | 2005-11-15 |
WO1997004165A1 (en) | 1997-02-06 |
DE69522587T2 (en) | 2002-06-06 |
FI980082A (en) | 1998-01-16 |
EP0839226B1 (en) | 2001-09-05 |
AU3401195A (en) | 1997-02-18 |
JP3822907B2 (en) | 2006-09-20 |
US6071378A (en) | 2000-06-06 |
FI980082A0 (en) | 1998-01-16 |
EP0839226A1 (en) | 1998-05-06 |
DE69522587D1 (en) | 2001-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
EEFA | Change of the company name | ||
REN | Ceased due to non-payment of the annual fee |